Improvement in filters



rrED STATES PATENTOFFICE. N

THOMAS SIMMONS, OFBROOKLYN, NEW' YORK.

IMPROVEMENT IN FILTERS.

vSplaint-ation forming part of Letters Patent No. 82,255, datedSeptember l5, lefiji.

To all whom yit may concern:

Beit known that I, THOMAS SIMMONS, 5 Hicks street, Brooklyn, L. I., inthe county of Kings, and in the State of New York, haveinven ted certain new and useful Improvements in Filters; and do hereby declare thatthe following is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to theI letters of referencemarked thereon.

In the annexed drawings, making; pa-rt ot this specification, Arepresents a hollowr cylinder, which I use as a case for my filter. Onehead of this cylinder is movable and the other is stationary, and toeach head is connected a pipe, l), upon which is a screw-threatl for.connecting it by means of a union, li, to a pipe, (lr, through which theliquid to be filtered is conducted from a torce-puni p.

N'Vthin the cylinder A is placed a trame, (i, which consists of a coilot' w're with heads secured to it at each end` rIhe frame (i is eo\'ered with anysuitable fibrous textile. material, and the ends ot'thisi-,ovei-lug are tied orbonnd fast to the beads ot' said franie.`A Apipe, E,

passes into this frame O, and one end of saidA pipe connects with thatpipe l) which conducts'the liquid into the frame.

. 'lhe pipel) connects with a pipe, (i, which provided Awithscrew-threads, by means of which the union B connects either one ot'them to the pipe G, it will readily be seen that, when the filterbecomes foul, by reversing it and connecting its lower end to thev pipeGr, water or any other suitable liquid can be forced through it for thepurpose of removing all obstructions from its iuterstices.

This filter may be used f'or filtering: water or any other liquid. V

The above-described invention an im` provenient upon my patent-for afilter bearing; f date April 11,1865.

` The improvement consists in the use ot' the single coil (l dispensing'with the `jointed sp1-iup; and intermediate double 'flange in thevmovable head, and the pipesl) l), with their screw-threads, so that thefilter may be rovers-od f'or clcansing, &e., and in the pipes (i, as andtoi-'the purposes set forth.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. 'Ihe case A, provided with a movable head, and each of its headsbeing.; provided with the pipes l) ]),upon which screw-threads areformed, so that the filter can be reversed and cleansed, substantiallyas set forth.

2. The frame tl, as constructed and combined with the case A and pipesl) l) and (l,

vwhen used with a torce-pump, as and for the purpose set forth.

In testimonyl that I claim the foregoing 4I have hereunto set my handthis 4th day ot' April, A. l). 1868.

'rnouAs siiinoxs.

Witnesses:

S. BROCK, EDGAR KETCXIUM, Jr.

